139949356 has 6 divisors (see below), whose sum is σ = 244911380. Its totient is φ = 69974676.

The previous prime is 139949347. The next prime is 139949377. The reversal of 139949356 is 653949931.

139949356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17493666 + ... + 17493673.

Almost surely, 2^139949356 is an apocalyptic number.

It is an amenable number.

139949356 is a deficient number, since it is larger than the sum of its proper divisors (104962024).

139949356 is a wasteful number, since it uses less digits than its factorization.

139949356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34987343 (or 34987341 counting only the distinct ones).

The product of its digits is 787320, while the sum is 49.

The square root of 139949356 is about 11830.0192730190. The cubic root of 139949356 is about 519.1867910454.

The spelling of 139949356 in words is "one hundred thirty-nine million, nine hundred forty-nine thousand, three hundred fifty-six".